The Office will review a timely filed statement of use (SOU) to determine whether it meets the following minimum requirements:
(1) The fee for at least a single class, required by § 2.6;
(2) One specimen of the mark as used in commerce;
(3) A statement that is signed and verified (sworn to) or supported by a declaration under § 2.20 by a person properly authorized to sign on behalf of the applicant that the mark is in use in commerce. If the verification or declaration is unsigned or signed by the wrong party, the applicant must submit a substitute verification on or before the statutory deadline for filing the statement of use.